4 ms·
Increasing O2 has physiological effects different from the effects of decreasing CO2. It is not just the ratio or difference between the concentrations that mat
by frank2 6y ago
Increasing O2 has physiological effects different from the effects of decreasing CO2. It is not just the ratio or difference between the concentrations that matter.
For example, a major effect of increasing CO2 is to make the blood more acidic (or to put more stress on the homeostatic mechanisms that maintain a target pH), and my guess is that no amount of increasing O2 will cancel that out.
- matheusmoreira 6y ago> a major effect of increasing CO2 is to make the blood more acidic (or to put more stress on the homeostatic mechanisms that maintain a target pH), and my guess is that no amount of increasing O2 will cancel that out True. More details on this mechanism: The body uses buffer systems in order to minimize blood pH changes. For example, the bicarbonate buffer system which is catalazyed by carbonic anhydrase. CO₂ + H₂O ⇌ H₂CO₃ ⇌ HCO₃- + H+ It is converted back to carbon dioxide in the lungs and exhaled. The rate at which this process occurs is mainly influenced by respiratory rate. Oxygen doesn't directly influence it. O₂ enables aerobic cellular respiration, the process which produces carbon dioxide. The hydrogen ions are buffered by proteins such as hemoglobin. They are also excreted by the kidneys. https://en.wikipedia.org/wiki/Buffer_solution https://en.wikipedia.org/wiki/Buffer_solution https://en.wikipedia.org/wiki/Bicarbonate_buffer_system https://en.wikipedia.org/wiki/Bicarbonate_buffer_system https://en.wikipedia.org/wiki/Acid%E2%80%93base_homeostasis https://en.wikipedia.org/wiki/Acid%E2%80%93base_homeostasis https://opentextbc.ca/anatomyandphysiology/chapter/26-4-acid-base-balance/ https://opentextbc.ca/anatomyandphysiology/chapter/26-4-acid...